增大截面法在双曲拱桥加固中的研究

Research on increasing section method used in double-curved arch bridge reinforcement

针对某双曲拱桥,采用5种加固方法进行加固,借用MIDAS软件分别建立相对应的仿真模型,根据实际荷载工况进行分析研究,运用成本效益系数k,最后决定采用增大截面法对该桥进行加固。

In light of the double-curved arch bridge, the paper applies five reinforcement methods, adopts MIDAS software, establishes corre- sponding simulating models, carries out analysis research according actual loading conditions, uses cost benefit coefficient k, and finally deter- mines to use section-increasing method to reinforce the bridge.